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Gustavo Murta
Gustavo Murta vor 6 Stunden
Hi Padakathu, ​ Suggestions for study : https://datasheets.maximintegrated.com/en/ds/ICL7135.pdfhttps://www.renesas.com/br/en/www/doc/datasheet/icl7135.pdf http://ww1.microchip.com/downloads/en/Appnotes/00785a.pdfhttp://ww1.microchip.com/downloads/en/Appnotes/00781a.pdf File attached (old) -  Understanding the Auto Zero and Common Mode and more... Regards,  Gustavo Murta   
ESP32 Digital Voltmeter
Bob_L
Bob_L vor 15 Stunden
Because the NMEA messages are likely from a buffered queue. No guarantee the queue is timed consistent from unit to unit. That's exactly why the 1PPS signal comes out of the GPS module, it is synchronized much tighter to GPS time, and could have jitter in the low nanoseconds. Sync your clock to the NMEA message, but adjust the timer according to the 1PPS signal. There is tons more published regarding this task, search the "time nuts" mailing list archive.
Millisecond GPS clock
PADAKATHU R RANGASAMY
PADAKATHU R RANGASAMY vor 15 Stunden
Thank you Gustavo for help, i will study and find the way for conversion. and post the result.
ESP32 Digital Voltmeter
lelion95
lelion95 vor 22 Stunden
Magnifique
Show Us Your Home Lab and Win More Gear to Clutter It With [contest closed]
bera
bera vor 1 Tag
Hi Wilson, Thanks for taking interest in this project of mine.  Sorry, I don't have CAD schematics. However, I can make a decent fritzing sketch of it but I really have shortage of time. In fact when I did this project I did not even know of fritzing.  You have to wait for sometime till I get some free time to prepare it. Bera S  
4 Channel Remote control by 433 MHz radios